What happens on a movie date?

If she's on a date with you, she probably likes you, so she probably does want you to put your arm around her. I like it when a guy is cheesy, so you could try something like my personal favorite: ask her is she likes fishing and say "one time, I caught a fish thhiiiss big! " stretch your arms out to show her how big, then keep your arm around her. It may sound corny. But it's really sweet and romantic. I would love it if the guy I like would do that to me.

I've never been on a movie date, but my friends have. If she's willing to go on a date with you, then she likes you. One way is by yawning and raising your hands and slowly lower your arm and put it around her.